Throat swab

If your doctor suspects strep is the cause of your child's illness, he or she will also swab the tonsils and back of your child's throat to collect material that may harbor the strep bacteria.

Tests for the strep bacteria are important because a number of conditions can cause the signs and symptoms of scarlet fever, and these illnesses may require different treatments. If there are no strep bacteria, then some other factor is causing the illness.

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